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Optimal Peanut Butter and Banana Sandwiches

ethanrosenthal.com

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Re: Optimal Peanut Butter and Banana Sandwiches

#101

Post by sammorrowdrums »

cperrine wrote: post #97
sammorrowdrums wrote: post #22

I always mash the banana on. I find it has a nicer texture than slices somehow. I also recommend toasted "wheaten bread". A form of wholemeal soda bread popular in Northern Ireland. https://www.thespruceeats.com/traditional-irish-wheaten-brea... [Edit] add word toasted.

I grew up making PB&B by mashing the banana and peanut butter together in a bowl, tuning the ratio to taste at that time, and then applying the mixture to the bread. I'm starting to think maybe this was not the usual way?

Never encountered that! Interesting approach.

Re: Optimal Peanut Butter and Banana Sandwiches

#102

Post by [deleted] »

davycro wrote: post #37

I am an emergency physician without any formal software training and for the last three months I’ve been trying to build a program that segments the wall of the heart from an ultrasound video and then identifies regions that aren’t moving (an early sign of heart attack). There are many similarities between this man’s project and mine. And if I had his knowledge I may have cracked my problem by now and would have new…

[deleted]

Re: Optimal Peanut Butter and Banana Sandwiches

#104

Post by jiggawatts »

davycro wrote: post #66
enriquto wrote: post #43

Earlier quoted context omitted.

Do you realize that there are thousands of scientific publications in medical image processing that address exactly the same concrete problem that you have?

Yes, however much of that research is for formal ultrasound obtained by a professional sonographer with an expensive machine. I'm interested in bedside ultrasound performed by an emergency physician with a mediocre machine (eg butterfly). It seems the primary way to detect regional wall motion abnormalities is with speckle tracking, which requires way too much post-processing for a clinician. A system that segments t…

I love this comment deeply, because it is a view into someone else's world, someone who is chipping away at real problems and making "the future" happen. A future where more people are saved from death through incredible-yet-easy-to-use technology.

Kudos for advancing the human race.

Re: Optimal Peanut Butter and Banana Sandwiches

#105

Post by glxxyz »

6DM wrote: post #34

You could take the chef approach by picking straight banana's and squaring them off first. The sizing would be pretty consistent, the leftovers can go in a shake, or frozen for a smoothie later and you would have a higher percentage of perfect coverage :)

+1 for freezing leftover bananas. Freezing ripe bananas just before they over-ripen is the greatest life hack I ever learned. I can't believe it took me so long to stumble on it.

Slice ripe bananas into a reusable sandwich bag, pretty much in a layer (not a frozen clump) so you can break off a part of the layer, and freeze. Later semi-defrost and throw in a smoothie or protein shake. Never throw away an over-ripe banana again.

Re: Optimal Peanut Butter and Banana Sandwiches

#106

Post by glxxyz »

saalweachter wrote: post #11

I initially assumed the challenge was to fit the entire banana on the bread in a single layer; I am disappointed that problem was not solved, but it seems like it should be a relatively trivial extension of the package provided (produce a packing for [N, M] slices of banana, pick the number of slices which covers the bread without any left over pieces). (Of course, as someone who does not eat banana sandwiches, I hav…

I thought this too- the solutions presented didn't feel 'optimal' for real word peanut butter and banana sandwiches.

Re: Optimal Peanut Butter and Banana Sandwiches

#107

Post by QuadmasterXLII »

davycro wrote: post #37

I am an emergency physician without any formal software training and for the last three months I’ve been trying to build a program that segments the wall of the heart from an ultrasound video and then identifies regions that aren’t moving (an early sign of heart attack). There are many similarities between this man’s project and mine. And if I had his knowledge I may have cracked my problem by now and would have new…

Hi! You should consider contacting Stephen Aylward at Kitware. His corner of the company specializes in connecting clinicians with expertise in point of care ultrasound with machine learning programmers paid through Kitware, funded by NIH grants. I worked for him for the last three years, focused on assessing intracranial pressure with ultrasound and assessing pneumothorax with ultrasound.

Re: Optimal Peanut Butter and Banana Sandwiches

#108

Post by davycro »

fpgaminer wrote: post #100
davycro wrote: post #99

Earlier quoted context omitted.

That would require a dataset of ultrasounds from people having active myocardial infarctions, which we don’t have, and would take at least a year of academic coordination to assemble. The current datasets are just labeled anatomy at end systole and diastole.

Hmm, curious. I suppose I would wonder, then, if there's no dataset how any algorithm could be developed. What I mean is ... once you've developed something, how do you test how well it performs? How do you analyze the effectiveness of the algorithm, the false positive rate, etc.

I could assemble a small dataset of less than a hundred ultrasounds to test the algorithm. A big dataset that could train an AI would require quite the effort.

Great questions, and you highlight the need for shared ultrasound data.

Re: Optimal Peanut Butter and Banana Sandwiches

#109

Post by davycro »

QuadmasterXLII wrote: post #107
davycro wrote: post #37

I am an emergency physician without any formal software training and for the last three months I’ve been trying to build a program that segments the wall of the heart from an ultrasound video and then identifies regions that aren’t moving (an early sign of heart attack). There are many similarities between this man’s project and mine. And if I had his knowledge I may have cracked my problem by now and would have new…

Hi! You should consider contacting Stephen Aylward at Kitware. His corner of the company specializes in connecting clinicians with expertise in point of care ultrasound with machine learning programmers paid through Kitware, funded by NIH grants. I worked for him for the last three years, focused on assessing intracranial pressure with ultrasound and assessing pneumothorax with ultrasound.

Heck yes, will do!

For intracranial pressure did you look at ocular ultrasound? How did that work out? Did you have ICPs from actual bolted patients for the gold standard / ground truth? That would be incredibly useful especially in patients on a ventilator who can’t provide a neuro exam.

Pneumothorax seems tricky since really it requires a lung point for diagnosis, and those can be hard to find. Did you simply look for lung sliding? That’s all a physician really needs to make an informed diagnosis.

I love hearing about this. Thank you for the work you do

Re: Optimal Peanut Butter and Banana Sandwiches

#110

Post by silexia »

sammorrowdrums wrote: post #22

I always mash the banana on. I find it has a nicer texture than slices somehow. I also recommend toasted "wheaten bread". A form of wholemeal soda bread popular in Northern Ireland. https://www.thespruceeats.com/traditional-irish-wheaten-brea... [Edit] add word toasted.

I also mash the banana with peanut butter, but instead of putting it on bread, I put it on steel cut oats. Then add a small amount of milk and mix. Finally, top with honey.
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